This is an isotope of a chemical element.
A substance made up of only one kind of atom is an element, which is a pure substance.
an element is a substance rested with only one and ONE substance
A substance made up of only one kind of atom is an element.
element
Element
hydrogen
This is an isotope of a chemical element.
Element
No. An element is a pure substance made of only one kind of atom. A compound is a pure substance made of two or more kinds of atom.
element
it's called a element according to study island
An element